Security restrictions bypass in wpa_supplicant (Alpine package)



Published: 2017-10-16
Risk Low
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2017-13080
CWE-ID CWE-264
Exploitation vector Local network
Public exploit N/A
Vulnerable software
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wpa_supplicant (Alpine package)
Operating systems & Components / Operating system package or component

Vendor Alpine Linux Development Team

Security Bulletin

This security bulletin contains one low risk vulnerability.

1) Security restrictions bypass

EUVDB-ID: #VU9591

Risk: Low

CVSSv3.1: 5.7 [CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2017-13080

CWE-ID: CWE-264 - Permissions, Privileges, and Access Controls

Exploit availability: No

Description

The vulnerability allows an adjacent attacker to write arbitrary files on the target system.

The weakness exists due to Wi-Fi Protected Access (WPA and WPA2) allows reinstallation of the Group Temporal Key (GTK) during the group key handshake. An adjacent attacker can replay frames from access points to clients.

Mitigation

Install update from vendor's website.

Vulnerable software versions

wpa_supplicant (Alpine package): 2.5-r0 - 2.6-r1

External links

http://git.alpinelinux.org/aports/commit/?id=5d9b6ee36295e84a95a5f48e7d226f6f2da265a7
http://git.alpinelinux.org/aports/commit/?id=57cd67fa16df97115527b17820f127ef78598e94
http://git.alpinelinux.org/aports/commit/?id=a274bb496caede406362dbb9deecc5b6e9a6b1a2
http://git.alpinelinux.org/aports/commit/?id=02cd073e9970950f6a8d660f7a1616631dba33d9
http://git.alpinelinux.org/aports/commit/?id=d9700fde5211ea28dddaf8bc528e44b0dfac9245


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the local network (LAN).

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.



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